백준 : : 2920번 음계 - C++ 풀이

https://www.acmicpc.net/problem/2920

2920번: 음계

 

#include <iostream>
int CheckMellody(int arr[], int len){
    int i;
 //1 : des, 2: des, -1: mix
    if(arr[i] > arr[i+1]){ // 7 6 5 
        for(i = 0; i < len - 1 ; i++){
            if(arr[i] < arr[i+1]) return -1;
        }
        return 1;
    }
       
    else{ // 1 2 3
        for(i = 0; i < len - 1; i++){
            if(arr[i] > arr[i+1]){
                return -1;
            }
        }
        return 2;
    }
}
int main(){
    int input[8];
    int result;
    for(int i = 0; i < 8; i++){
        std::cin >> input[i];
    }
    result = CheckMellody(input, sizeof(input)/sizeof(int));
    if(result == 1) std::cout << "descending" << std::endl;
    else if(result == 2) std::cout << "ascending" << std::endl;
    else std::cout << "mixed" << std::endl;
    return 0;
}